24 July 2021 Pressure Vessel Steel Plate
P275N Pressure Vessel Steel Plate
P275NH is a carbon (non-alloy) steel formulated for primary forming into wrought products. It is typically furnished in the normalized condition. 1.0487 is the EN numeric designation for this material. P275NH is the EN chemical designation.
It has a moderately high base cost among wrought carbon or non-alloy steels. In addition, it has a moderately high embodied energy and a moderately high ductility.
| Grade : | P275NH |
| Number: | 1.0487 |
| Classification: | Non-alloy elevated temperature quality steel |
| Density: | 7.85 g/cm ³ |
| Standard: | EN 10028-3: 2009 Flat products made of steels for pressure purposes. Weldable fine grain steels, normalized |
Chemical composition % of steel P275NH (1.0487): EN 10028-3-2009
| C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Al | Cu | - |
| max 0.16 | max 0.4 | 0.8 - 1.5 | max 0.5 | max 0.025 | max 0.015 | max 0.3 | max 0.08 | max 0.05 | max 0.012 | max 0.05 | max 0.03 | max 0.02 | max 0.3 | Nb+Ti+V < 0.05 |
Mechanical properties of steel P275NH (1.0487)
| Nominal thickness (mm): | to 60 | 60 - 100 | 100 - 150 | 150 - 250 |
| Rm - Tensile strength (MPa) (+N) | 390-510 | 370-490 | 360-480 | 350-470 |
| Nominal thickness (mm): | to 16 | 16 - 40 | 40 - 60 | 60 - 100 | 100 - 150 | 150 - 250 |
| ReH - Minimum yield strength (MPa) (+N) | 275 | 265 | 255 | 235 | 225 | 215 |
| KV - Impact energy (J) transverse, (+N) | -20° 30 | 0° 40 | +20° 50 |
| KV - Impact energy (J) longitud., (+N) | -20° 40-45 | 0° 47-65 | +20° 55-75 |
| Nominal thickness (mm): | to 60 | 60 - 250 |
| A - Min. elongation at fracture (%) (+N) | 24 | 23 |